MASS SPECTROMETRIC STUDY OF THE YTTRIUM-CARBON SYSTEM.
Abstract
A high temperature investigation of the vapor in thermodynamic equilibrium with the Y-C condensed system was carried out in the temperature range 2075-2340 K. Y and YC2 are shown to be important species in the vapor phase. Utilizing the pressure independent reaction Y(g) + 2C(s) yields Yc2(g), second and third law methods yielded D = 155 + or -6 kcal/mol and D = 156 + or -5 kcal/mol respectively for the Y-C2 bond energy. An estimated heat of formation, delta H = -27 + or -6 kcal/mol, for solid dicarbide is also obtained. Comparison between Me-C2 and Me-O bond strengths is made for Group III A elements and for the first two elements of the lanthanide series. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1965
- Accession Number
- AD0476742
Entities
People
- B. Pesce
- Giovonni De Maria
- L. Malaspina
- M. Guido
Organizations
- Sapienza University of Rome